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Author Question: Monochromatic light is incident on a metal surface, and the ejected electrons give rise to a current ... (Read 289 times)

dejastew

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on: Oct 11, 2019

Question 1

If a typical city consumes electrical energy at a rate of how many kilograms of matter would have to be converted entirely into electrical energy in order to keep this city running for
◦ 0.21 kg
◦ 0.19 kg
◦ 0.27 kg
◦ 0.32 kg

Question 2

Monochromatic light is incident on a metal surface, and the ejected electrons give rise to a current in the circuit shown in the figure.  The maximum kinetic energy of the ejected electrons is determined by applying a reverse ('stopping') potential, sufficient to reduce the current in the ammeter to zero. If the intensity of the incident light is increased, how will the required stopping potential change?



◦ It will remain unchanged.
◦ It will decrease.
◦ It will increase.
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Marked as best answer by dejastew on Oct 11, 2019

efwsefaw

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Reply #1 on: Oct 11, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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dejastew

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Reply 2 on: Oct 11, 2019
Great answer, keep it coming :)

sailorcrescent

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Reply 3 on: Yesterday
Excellent

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